User Manual
AW V G 1
Wideband Video Generator
070-9051-02
This document applies to firmware version 2.0
and above.
www.tektronix.com
Copyright © Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
WARRANTY
Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship
for a period of one (1) year from the date of shipment. If a product proves defective during this warranty period, Tektronix,
at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in
exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service . Customer shal l be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid.
Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction
caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated with other
products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS W ARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER W ARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO
REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO
THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE
LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE
OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.
Service Assurance
If you have not already purchased Service Assurance for this product, you may do so at any time during the product’s
warranty period. Service Assurance provides Repair Protection and Calibration Services to meet your needs.
Repair Protection extends priority repair services beyond the product’s warranty period; you may purchase up to three
years of Repair Protection.
Calibration Services provide annual calibration of your product, standards compliance and required audit documentation,
recall assurance, and reminder notification of scheduled calibration. Coverage begins upon registration; you may purchase
up to five years of Calibration Services.
Service Assurance Advantages
H Priced well below the cost of a single repair or calibration
H Avoid delays for service by eliminating the need for separate purchase authorizations from your company
H Eliminates unexpected service expenses
For Information and Ordering
For more information or to order Service Assurance, contact your Tektronix representative and provide the information
below. Service Assurance may not be available in locations outside the United States of America.
Name VISA or Master Card number and expiration
Company date or purchase order number
Address Repair Protection (1,2, or 3 years)
City, State, Postal code Calibration Services (1,2,3,4, or 5 years)
Country Instrument model and serial number
Phone Instrument purchase date
Table of Contents
Getting Started
Operating Basics
General Safety Summary vii..........................................
Service Safety Summary ix..........................................
Preface xi........................................................
Contacting Tektronix x.............................................
Getting Started 1--1............................................
Product Description 1--1..............................................
Accessories 1--2.....................................................
Configuration 1--2...................................................
Functional Check 1--3................................................
Functional Overview 2--1.......................................
Outputs 2--2........................................................
Input 2--2..........................................................
Online Help 2--2.....................................................
Operating Procedures 2--3......................................
Equipment Hookup 2--3...............................................
Power On and Select the Module 2--4....................................
Output Signal 2--5...................................................
Enable/Disable the Module Output 2--5...............................
Select the Output Signal 2--6.......................................
Active Signal Parameters 2--9..........................................
Video Parameters 2--11.............................................
Zone Plate Test Signal 2--14.........................................
Module Parameters 2--17...............................................
Timing 2--18.....................................................
Syntax and Commands
Syntax 3--1...................................................
Programming Model 3--1..............................................
Addressing Module Test Signals 3--1.................................
Command Arguments 3--1.........................................
Argument Example 3--2...........................................
SCPI Commands and Queries 3--3......................................
Functional Command Groups 3--5...............................
MMemory 3--5......................................................
Output 3--5.........................................................
Sense 3--6..........................................................
Source 3--6.........................................................
OUTPut Subsystem 3--9........................................
Command Tree 3--9..................................................
:OUTPut:STATe(?) 3--10...............................................
:OUTPut:SOURce(?) 3--11.............................................
SENSe Subsystem 3 --13.........................................
AWVG1 Wideband Video Generator User Manual
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Table of Contents
Command Tree 3--13..................................................
:SENSe:CORRection:MDELay:VERTical(?) 3--14..........................
:SENSe:CORRection:MDELay:HORizontal(?) 3--15........................
SOURce Subsystem 3--17........................................
Command Tree 3--17..................................................
:SOURce:MVIDeo:SYNC(?) 3--18.......................................
:SOURce:MVIDeo:BURSt(?) 3--19......................................
:SOURce:MVIDeo:SWEep:AMPLitude(?) 3--20............................
:SOURce:SWEep:FREQuency:STARt(?) 3--21.............................
:SOURce:SWEep:FREQuency:STOP(?) 3--22..............................
:SOURce:SWEep:MARKer5:FREQuency(?) 3--23..........................
:SOURce:SWEep:MARKer5:STATe(?) 3--24...............................
:SOURce:ZONE:FREQuency(?) 3--25....................................
:SOURce:ZONE:AMPLitude(?) 3--26....................................
:SOURce:ZONE:K(?) 3--27.............................................
:SOURce:ZONE:KX(?) 3--28...........................................
:SOURce:ZONE:KX2(?) 3--29..........................................
:SOURce:ZONE:KXT(?) 3--30..........................................
:SOURce:ZONE:KXY(?) 3--31..........................................
:SOURce:ZONE:KY(?) 3--32...........................................
:SOURce:ZONE:KY2(?) 3--33..........................................
:SOURce:ZONE:KYT(?) 3--34..........................................
:SOURce:ZONE:KT(?) 3--35...........................................
:SOURce:ZONE:KT2(?) 3--36..........................................
:SOURce:ZONE:TRESet:STATe(?) 3--37..................................
Appendices
Appendix A: Specification A-- 1..................................
Electrical Specifications A--1...........................................
Certifications A--3...................................................
Appendix B: SCPI Conformance Information B--1..................
Appendix C: Zone Plates C-- 1...................................
Zone Plate Patterns C--1...............................................
Zone Plate Parameters C--2............................................
Pattern Control Parameter C--2......................................
KX Parameter C--3...............................................
KX2 Parameter C--4..............................................
KXY Parameter C--5..............................................
KY Parameter C--5...............................................
KY2 Parameter C--6..............................................
KF Parameter C--7................................................
KXT Parameter C--7..............................................
KYT Parameter C--7..............................................
KT Parameter C--7...............................................
KT2 Parameter C--8..............................................
Combining Parameters C--8............................................
Standard Zone Plate Signals C--9........................................
Appendix D: Installation D--1....................................
Preventing Component Damage D--1.....................................
Module Installation D--2...............................................
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AWVG1 Wideband Video Generator User Manual
Glossary and Index
Table of Contents
Hardware Installation D--2.........................................
Signal Set Installation D--6.........................................
Signal Backup and Module Removal D--8.................................
Required Equipment D--8..........................................
Module Removal D--8.............................................
AWVG1 Wideband Video Generator User Manual
iii
Table of Contents
List of Figures
Figure 1--1: Simplified block diagram of the AWVG1 Generator
module 1-- 1...............................................
Figure 1--2: Bullseye signal as displayed on a television monitor. 1--4..
Figure 2 --1: Basic menu structure for the AWVG1 Wideband Video
Generator module 2 --1......................................
Figure 3--1: Example of SCPI subsystem hierarchy 3--3..............
Figure C--1: Optical zone plates (enlarged) C--1.....................
Figure C--2: Zone plate parameters window C--3....................
Figure C--3: A KX-only zone plate C--4............................
Figure C--4: A KX2-only zone plate C--5...........................
Figure C--5: A KY-only zone plate C--6............................
Figure C--6: A KY2-only zone plate C--6...........................
Figure C--7: A Circular zone plate C--8............................
Figure D--1: TG 2000 Platform mainframe rear panel, showing slot
numbering D-- 2............................................
Figure D--2: Top cover removal D--3..............................
Figure D--3: Rear panel removal D--4.............................
Figure D --4: Module flange D-- 4..................................
Figure D --5: Module installation D-- 5.............................
Figure D--6: Top screw D--6......................................
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AWVG1 Wideband Video Generator User Manual
List of Tables
Table of Contents
Table 1--1: Standard and Optional Accessories 1-- 2.................
T able 3--1: :MMEMory commands 3--5...........................
T able 3--2: :OUTPut commands 3--5.............................
Table 3--3: :SENSe commands 3--6...............................
T able 3--4: :SOURce commands 3--6.............................
Table A--1: AWVG1 Generator module outputs A-- 1................
Table A--2: AWVG1 Generator module switcher input A-- 2..........
Table A--3: Certifications and compliances A--3....................
Table B--1: SCPI 1994.0 conformance information B--1..............
Table D--1: Module slot assignments D-- 2..........................
AWVG1 Wideband Video Generator User Manual
v
Table of Contents
vi
AWVG1 Wideband Video Generator User Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
To avoid potential hazards, use this product only as specified.
Injury Precautions
Product Damage
Precautions
Symbols and Terms
Avoid Electric Overload. To avoid electric shock or fire hazard, do not apply a
voltage to a terminal that is outside the range specified for that terminal.
Ground the Product. This product is indirectly grounded through the grounding
conductor of the mainframe power cord. To avoid electric shock, the grounding
conductor must be connected to earth ground. Before making connections to the
input or output terminals of the product, ensure that the product is properly
grounded.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
AWVG1 Wideband Video Generator User Manual
vii
General Safety Summary
Symbols on the Product. The following symbols may appear on the product:
Certifications and
Compliances
DANGER
High Voltage
Protective Ground
(Earth) Terminal
ATTENTION
Refer to Manual
Double
Insulated
Refer to the specifications section for a listing of certifications and compliances
that apply to this product.
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AWVG1 Wideband Video Generator User Manual
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, disconnect the main power by means
of the power cord or, if provided, the power switch.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
AWVG1 Wideband Video Generator User Manual
ix
Service Safety Summary
x
AWVG1 Wideband Video Generator User Manual
Preface
About This Manual
This manual documents the capabilities, specifications, operation, and installation of the AWVG1 Wideband Video Generator module.
This manual is composed of the following sections:
H Getting Started provides a product description, incoming inspection
procedure, and a standard and optional accessories list.
H Operating Basics tells how to operate the module.
H Syntax and Commands defines the syntax used in command descriptions,
presents a list of all command subsystems, and presents detailed descriptions
of all programming commands.
H Appendices provide additional information including the specifications,
hardware installation procedures, and reference material on zone plate
signals.
Related Manuals
The following documents are also available:
H The AWVG1 Wideband Video Generator Service Manual describes how to
service the module. This optional manual must be ordered separately.
H The TG 2000 Signal Generation Platform User Manual describes how to use
the TG 2000 Platform. It also contains information about SCPI commands,
programming structure, and status and events for the platform. Some of this
information applies to all generator modules, including the AWVG1
Generator module. This manual is a standard accessary to the TG 2000
Platform mainframe.
H The TG 2000 Signal Generation Platform Service Manual describes how to
service the mainframe to the module level and provides general information
about servicing generator modules. This optional manual must be ordered
separately.
H A module user manual is included with each optional module. Contact your
Tektronix representative for a list of generator and special function modules.
AWVG1 Wideband Video Generator User Manual
xi
Preface
Contacting Tektronix
Product
Support
Service
support
Toll-free
Number
Postal
Address
For questions about using Tektronix measurement products, call
toll free in North America:
1-800-833-9200
6:00 a.m. -- 5:00 p.m. Pacific time
Or contact us by e-mail:
tm_app_supp@tek.com
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Tektronix offers a range of services, including Extended
Warranty Repair and Calibration services. Contact your local
Tektronix distributor or sales office for details.
For a listing of worldwide service centers, visit our web site.
In North America:
1-800-833-9200
An operator can direct your call.
Tektronix, Inc.
Department or name (if known)
P.O. Box 500
Beaverton, OR 97077
USA
Web site www.tektronix.com
xii
AWVG1 Wideband Video Generator User Manual
Getting Started
Getting Started
The AWVG1 Wideband Video Generator module is designed to be installed in
the TG 2000 Signal Generation Platform.
The module generates wideband analog signals for use in television systems.
This 30 MHz bandwidth generator is capable of 12-bit precision. The primary
function of the module is to provide zone plate and sweep signals. Disks
containing test signal libraries for these types of signals are provided with this
manual.
See Figure 1--1 for a diagram of the module’s internal structure.
CPU Bus
Clock/Frame
Reset Bus
Module
NVRAM
Module
Flash
Memory
Module
Delay
Module
Clocks
Video
Pattern
Memory
Zone
Plate
Generator
Burst
Generator
Figure 1- 1: Simplified block diagram of the AWVG1 Generator module
The module is a single-channel generator, which outputs either the internally
generated signal or an analog video signal from the rear-panel input on its three
output connectors. The rear-panel input is provided for convenience of operation
so that the output signal can be switched between the internally generated signal
and the external signal, which can come from another source, such as the AVG1
Generator module. There is no loop-through of the external signal when the
module output is disabled or when the power is off.
Amplitude
Control
Mux
Video
Amplitude
Sine wave
DAC
and
Filter
Wideband
Analog Video
(three outputs)
Analog
Video Input
For internally generated signals, output signal data is obtained from either the
signal memory or the zone plate generator. The basic signal contains luminance
information only, so burst is generated and multiplexed in at the appropriate
time.
The module’s memory architecture is run-length encoded. This allows signals
that have redundancy to occupy a smaller space, or conversely more complex
AWVG1 Wideband Video Generator User Manual
1- 1
Getting Started
Accessories
signals in the same space. For signals with no redundancy, there is enough
memory for 30 unique lines of signal data.
This module provides the following signal types: line and field sweeps with
frequency markers (fixed and variable), zone plates, multipulses, multibursts,
and pulse and bars. Front panel control of sweep marker frequency and sweep
start and stop frequencies is provided.
Table lists standard and optional accessories for the module. Standard accessories
are included with the module, and optional accessories are available for purchase
to use with the module.
Table 1- 1: Standard and Optional Accessories
Accessory Typo of Accessory Part Number
AWVG1 Wideband Video Generator User Manual Standard 070-9051-XX
Configuration
T-10 Torx Tip Standard 003-1604-XX
Screws (2 ea.) Standard 211-0725-XX
Blank rear panel Standard 333-4113-XX
AWVG1 Wideband Video Generator Service Manual Optional 070-9302-XX
This module does not require any configuration.
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AWVG1 Wideband Video Generator User Manual
Functional Check
Getting Started
Perform the following procedure to determine if the module is operating
correctly. For this procedure, you will need a television monitor to view the
generator signals.
1. If the module is not installed in the TG 2000 mainframe, use the installation
procedures in Appendix D: Hardware Installation.
2. Cycle instrument power. The mainframe runs a self test on all modules.
To determine if the self test was successful, push the Module button and see
if the AWVG1 module icon appears. If you have more than one AWVG1
Generator module installed, check the slot number on the display to be sure
the module you are checking appears.
3. If necessary, install signal sets into the module using the procedure on
page D--6. Be sure that you have the Bullseye signal installed.
4. Connect your monitor to the Output 1 BNC connector on the AWVG1
Generator module rear panel, and terminate the monitor’s loop-through
connector in 75 Ω.
5. Terminate the AWVG1 Generator module outputs 2 and 3 in 75 Ω. (This is
necessary for the module self cal.)
6. Wait 20 minutes for the instrument to warm up.
7. Push the Utilities button, and then do the following:
a. Touch Module Self Cal on the display.
b. Touch the self-cal icon for the module you are testing.
c. Touch Start Cal on the display.
The Self Cal takes 2 to 5 minutes, depending on the module. An error
message indicates a failed calibration. If the Self Cal fails, contact your
Tektronix representative for assistance.
8. Push the Modules front-panel button and touch AW VG 1 on the display.
9. Select a signal set that is compatible with your monitor, and then touch the
Zoneplate icon to select the Bullseye signal as the output signal. Selecting
the signal automatically ensures that the module output is enabled.
10. Adjust your monitor to view the signal. Check that a circle signal appears,
similar to the signal shown in Figure 1--2.
AWVG1 Wideband Video Generator User Manual
1- 3
Getting Started
Figure 1- 2: Bullseye signal as displayed on a television monitor
11. Move the output cable to each of the BNC output connectors to ensure that
the signal appears correctly.
12. Move the output cable back to Output 1.
13. Select a different zone plate test signal and check that the displayed signal
changes. You only need to do this on Output 1.
14. Check the AWVG1 External Input as follows:
a. Using a 75 Ω coaxial cable, connect a television test signal from a
source such as an AVG1 module, to the AWVG1 module External Input.
b. Check the output of the AWVG1 module on the television monitor in
pulse cross mode. Check that the signal is displayed correctly . Check
that the appropriate burst for your video format is present in the signal.
This concludes the functional check.
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AWVG1 Wideband Video Generator User Manual
Operating Basics
Functional Overview
This section provides an overview of the AWVG1 Generator module. If you are
not familiar with the operation of the TG 2000 Signal Generation Platform, refer
to the TG 2000 Signal Generation Platform User Manual before reading this
section.
Figure 2--1 shows the module’s menu structure.
Edit Module window
Touch Rename
Module
Rename Module
window
Enter new name for
module
Module Parameters window
Touch Output
Enable/Disable
Modules window
Touch Module
Parameters
output signal or touch EXT INPUT to use the
externally applied signal as the output signal
Touch Module Timing
Touch AWVG1 module
Signal Sets window
Touch desired signal set
(usually represents format)
Test Signals window
Touch desired Test Signal icon to select
Touch Module
Parameters
Touch Active
Signal Parameters
Active Signal Parameters window
Touch Video, Zoneplate, or
Signal Information
Push Modules
button
Push Edit
button
Push Signal
Sets button
Push Test
Signals button
Figure 2- 1: Basic menu structure for the module
AWVG1 Wideband Video Generator User Manual
Module Timing window
Set module timing with
respect to the BG1 module
Video, Zoneplate, or Signal
Information windows
Set video or zoneplate parameters,
or view details of selected signal
2- 1
Functional Overview
Outputs
Input
Online Help
The three BNC output connectors for this module all supply the same output
signal. For information on how to select the output signal, refer to Select the
Output Signal on page 2--5.
The BNC input connector is compensated for 75 Ω. This input is provided so
that you can use the output of another module (such as the AVG1 Generator
module) as the output signal for the AWVG1 Generator module. To do this, you
must select External Input as the AWVG1 Generator module output signal. For
information on how to do this, refer to Select the Output Signal on page 2--5.
Push the front-panel HELP button to display a help window. The help window
describes the AWVG1 Generator module window you were using when you
pushed HELP.
If a help window is longer than the display, you can scroll through the help text
using the Navigation arrow keys. To exit the help window, touch Quit.
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AWVG1 Wideband Video Generator User Manual
Operating Procedures
This section is organized into the following main topics:
H Power on the mainframe and select the module
H Select the output signal
H Active signal parameters
H Module parameters
Refer to Figure 2--1 on page 2--1 for information on how to access the appropriate windows for these procedures.
Equipment Hookup
No special test equipment is necessary for these procedures, but it will be helpful
to view the signals on a monitor. To do this, connect the module’s signal output
to a television monitor, using a 75
Ω cable and a 75 Ω termination.
AWVG1 Wideband Video Generator User Manual
2- 3
Operating Procedures
Power On and Select the Module
After the module is installed in the mainframe, and the mainframe is installed in
the rack or other location where it will be used, power on the mainframe and
select the module by following these steps:
1. Set the rear-panel power switch to the ON position.
2. Press the front-panel POWER switch if necessary.
3. Wait for a few seconds as the mainframe executes confidence tests on the
mainframe and modules. Check for any error messages that might appear.
4. When self tests are complete, the instrument displays icons representing the
generator modules. If an installed module is not represented, refer to
Troubleshooting in the AWVG1 Wideband Video Generator Service Manual.
NOTE. When the platform is shipped from the factory, the module is named
AWVG1:X where X represents the slot number in which the module is installed.
However, you can edit the module name by selecting the module and then
pushing the Edit button. The TG 2000 Signal Generation Platform User Manual
provides more information.
5. Since you have just powered on the mainframe, the Modules window (shown
below) is displayed. To select the module at other times, push the front-panel
Modules button to access this window.
a. Touch the module icon on the display (or push the Signal Sets button if
the desired icon is already highlighted). The installed signal sets for the
module appear. Selections you make after this will pertain to the
AWVG1 Generator module.
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AWVG1 Wideband Video Generator User Manual
Select the Output Signal
You can select any of the AWVG1 Generator module signals that are loaded in
your instrument to be the output signal, supplied on the three rear-panel outputs.
To select the output signal, follow these steps:
1. Push the Signal Sets button to open the window shown below. Check that
Operating Procedures
there is an icon for each installed signal set. If your signal sets are not
installed, refer to Signal Set Installation on page D -- 6.
2. Touch the desired signal set on the display. The Test Signals window for the
selected signal set appears. In the following example, 525 is selected.
3. Each test signal icon in the Test Signals window represents one or more
signals that the module can generate. In this example, the Zoneplate test
signal icon is selected, and the Horizontal Sine signal is being generated.
AWVG1 Wideband Video Generator User Manual
2- 5
Operating Procedures
4. To change to another zone plate signal, use one of the following methods:
a. Touch the Zone Plate repeatedly to browse through all available signals.
b. Touch the combo box below the window title (or rotate the Navigation
knob) to display a list of all the signals for the selected icon, as shown in
the following example. (_Horizontal Sine is a user-generated signal.)
c. To select a signal from the list, rotate the Navigation knob to move the
cursor to that signal, and then press the front panel Select key. In the
following example, the selected output signal is Horizontal Sine, but the
cursor has been moved to Vertical Sine. Pressing the Select key will
select Vertical Sine as the output signal.
5. To change to a different signal type, such as Multiburst, touch the corresponding icon on the display. Then select the signal as shown in step 4.
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AWVG1 Wideband Video Generator User Manual
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